A family of Microsoft presentation graphics products that offer tools for creating presentations and adding graphic effects like multimedia objects and special effects with text.
The Symbol font has been included in Windows for years and years, so you're licensed to use it, so long as it's the TrueType version.
See if you can find a copy on another PC and install it on yours.
Take care that it's TrueType. The latest versions of Office don't support Type 1/PostScript fonts.